Abstract: A water-dispersible particle wherein the material comprises (i) one or more polymeric deposition materials having an average repeat unit (I):  wherein at least one or more R groups of the polymer are independently selected from H, a hydrolysable group or a linker group in which when R is a hydrolysable group the degree of substitution is 0 to 3 and when R is a linker group the degree of substitution is 0.01 to 3; (ii) a benefit agent attached to the deposition enhancing part;  characterised in that the water-dispersible particle has a particle size from 20 to 5,000 nm.

Abstract: Aerated, ultra low-density cast-dehydrated syndet detergent bars for use in personal wash, fabric wash and hard surface cleaning. A process for preparing aerated, ultra low-density cast-dehydrated detergent bars wherein the air is entrained in the bars after rigidification and shaping the product is also provided.

Abstract: A method is described for using a computer in finding solutions to a problem dependent on a number of criteria. A model algorithm is provided for each of the criteria, each model algorithm providing a prediction for a corresponding criteria when a candidate solution is inputted into the model algorithm. At least one model algorithm provides a prediction with a prediction error bar for the corresponding criteria. Criteria are selected to optimise a set of candidate solutions. An algorithm is provided for optimisation of the set of candidate solutions in accordance with the selected criteria. A first set of candidate solutions is provided and the optimisation algorithm generates one or more new candidate solutions. All candidate solutions are inputted into the number of model algorithms to obtain predictions and at least one prediction error bar.